#!/usr/bin/env python3
import sys
import math

def main():
    s= {1, 2 ,3, 5, 0}
    print(s)
    for elem in s:
        print(elem)

    a = 1
    b = 1
    s2 = {math.factorial(i) for i in range(10) }
    print(s2)

if __name__ == '__main__':  
    main()
